V-O与VTM-0讨论

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Dear All：
1 _: \" N! M7 |# y' d! s7 j5 h! t% LV-0和VTM-0材料除了厚度不同外，有什么区别，能否相互代替？

gadmei

清水白菜 发表于 2012-10-29 16:03
以上可见Flammability这一项测试标准不一样，相关标准要求的厚度不一样；
/ ?! u0 [8 s- ?1 j60950-1里有说到Flammab ...

谢谢LZ，很详细

清水白菜

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Test Name	Test Method	Units	Tested (mm)	Value
Flammability	ISO 9773, IEC 60695-11-10	Class (color)	0.08	VTM-2 (NC)
			0.13	VTM-0 (NC, BK)
			0.25	VTM-0 (NC, BK)
			0.51	VTM-0 (NC, BK)
			0.63	V-0 (ALL)
			3.0	V-0 (ALL)

Glow-Wire Flammability (GWFI)	IEC 60695-2-12	C	-	-
Glow-Wire Ignition (GWIT)	IEC 60695-2-13	C	-	-
IEC Comparative Tracking Index	IEC 60112	Volts (Max)	-	-
IEC Ball Pressure	IEC 60695-10-2	C	-	-
ISO Heat Deflection (1.80 MPa)	ISO 75-2	C	-	-
ISO Tensile Strength	ISO 527-2	MPa	-	-
ISO Flexural Strength	ISO 178	MPa	-	-
ISO Tensile Impact	ISO 8256	kJ/m2	-	-
ISO Izod Impact	ISO 180	kJ/m2	-	-
ISO Charpy Impact	ISO 179-2	kJ/m2	-	-

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Test Name	Test Method	Units	Tested (mm)	Value
Flammability	IEC 60695-11-10, IEC 60695-11-20	Class (color)	0.75	V-1 (BK)
			1.5	V-0 (BK)
			2.5	V-0, 5VA (BK)
			3.0	V-0, 5VA (BK

Glow-Wire Flammability (GWFI)	IEC 60695-2-12	C	-	-
Glow-Wire Ignition (GWIT)	IEC 60695-2-13	C	-	-
IEC Comparative Tracking Index	IEC 60112	Volts (Max)	-	-
IEC Ball Pressure	IEC 60695-10-2	C	-	-
ISO Heat Deflection (1.80 MPa)	ISO 75-2	C	-	-
ISO Tensile Strength	ISO 527-2	MPa	-	-
ISO Flexural Strength	ISO 178	MPa	-	-
ISO Tensile Impact	ISO 8256	kJ/m2	-	-
ISO Izod Impact	ISO 180	kJ/m2	-	-
ISO Charpy Impact	ISO 179-2	kJ/m2	-	-

$ N: g1 o% j. V% I5 M, a
以上可见Flammability这一项测试标准不一样，相关标准要求的厚度不一样；
60950-1里有说到Flammability可以等效互换（见加粗部分）, 电气和机械强度方面要具体考虑。
1 w% T! T: `7 ^& ~$ b. z4 l/ q: o2 FNOTE 1 When applying the requirements in this standard, HF-1 CLASS FOAMED MATERIAL is regarded as better than
; i. Y: P/ c3 R1 QHF-2 CLASS, and HF-2 CLASS better than HBF CLASS.
NOTE 2 Similarly, material of 5VA CLASS is regarded as better than 5VB CLASS, 5VB CLASS better than V-0 CLASS,
0 a+ L5 V9 l/ A3 j: Z# c: W/ F& H9 p# XV-0 CLASS better than V-1 CLASS, V-1 CLASS better than V-2 CLASS, V-2 CLASS better than HB40 CLASS and
HB40 CLASS better than HB75 CLASS.
NOTE 3 Similarly, MATERIAL of VTM-0 CLASS is regarded as better than VTM-1 CLASS and VTM-1 CLASS better than
: S* f, M; p' w* h0 BVTM-2 CLASS.
NOTE 4 VTM-0 CLASS, VTM-1 CLASS and VTM-2 CLASS MATERIALS are considered to be equivalent to V-0 CLASS,
V-1 CLASS and V-2 CLASS MATERIALS, respectively, but only for their flammability properties. Their electrical and
. P" U3 _9 s* X0 k8 L5 V- ?7 fmechanical properties are not necessarily equivalent.
NOTE 5 Certain flammability classes have replaced the classes used in earlier editions of this standard. The
( K1 D4 J! z. o; E6 {) N( u6 }equivalence of the old and the new classes is shown in Table 1B.